Follow-up comments in this thread on the mailing list indicate that Ruby 1.9.3 doesn't have the slow load time experienced by some users of the chef-full package.
CHEF-3295 reports the slow startup time for simply running "chef-client --help".
RubyGems is version 1.8.12, the current release is 1.8.24. There are numerous bug fixes, and an important security fix (1.8.23). I am not seeing any issues with 1.8.24 on my local systems (Mac OS X 10.8, Ubuntu 12.04).
The only issue I can see with RubyGems 1.8.24, is it includes the following from 1.8.23:
=== 1.8.23 / 2012-04-19
This release increases the security used when RubyGems is talking to
an https server. If you use a custom RubyGems server over SSL, this
release will cause RubyGems to no longer connect unless your SSL cert
is globally valid.
You can configure SSL certificate usage in RubyGems through the
:ssl_ca_cert and :ssl_verify_mode options in ~/.gemrc and /etc/gemrc.
The recommended way is to set :ssl_ca_cert to the CA certificate for
your server or a certificate bundle containing your CA certification.
You may also set :ssl_verify_mode to 0 to completely disable SSL
certificate checks, but this is not recommended.
However, this only affects people who are running their own RubyGems server - rubygems.org has a valid certificate, and the default sources does not use HTTPS.
% /opt/chef/embedded/bin/gem env
- RUBYGEMS VERSION: 1.8.24
- GEM CONFIGURATION:
- :sources => ["http:]